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5127307891440 = 2435721488729287
BaseRepresentation
bin100101010011100101101…
…0111011001001011110000
3200011011110220101002100120
41022213023113121023300
51133001211310011230
614523241442250240
71036302316661400
oct112471327311360
920134426332316
105127307891440
1116a752a6aa689
126a9859056980
132b26702b6247
1413a23d4b4800
158d58e05d310
hex4a9cb5d92f0

5127307891440 has 240 divisors, whose sum is σ = 18491573463552. Its totient is φ = 1171837352448.

The previous prime is 5127307891309. The next prime is 5127307891457. The reversal of 5127307891440 is 441987037215.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175056477 + ... + 175085763.

Almost surely, 25127307891440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5127307891440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9245786731776).

5127307891440 is an abundant number, since it is smaller than the sum of its proper divisors (13364265572112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5127307891440 is a wasteful number, since it uses less digits than its factorization.

5127307891440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44204 (or 44191 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 5127307891440 in words is "five trillion, one hundred twenty-seven billion, three hundred seven million, eight hundred ninety-one thousand, four hundred forty".